Convert String date YYYY-MM to date in Javascript [duplicate] - javascript

This question already has answers here:
convert iso date to milliseconds in javascript
(10 answers)
Closed 7 years ago.
I have a date as a String like : 2015-12 for december 2015.
I would like to convert this date to get this date in milliseconds in javascript. (From the first day of the month)
How can i do it ?

Try using the Date object (new Date()).

You could do :
YourDate + "-01"
And then try to convert to a date
d = new Date(YourDate)
And finaly :
d.getMilliseconds()

Related

Convert Numeric String to Readable Date Format in JavaScript [duplicate]

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Parsing a string to a date in JavaScript
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How do I format a date in JavaScript?
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Closed 1 year ago.
Let's say I have a string 2021-08-13 and want to convert this to August 13, 2021. How would you achieve this as it's not a date object.
In my mind I can think of setting each numeric month to a text version of that month and re-arrange, however seeing if there are better ways of doing this.
Simple: convert the string into a Date object and use the toLocaleString function.
If you want to get rid of the timezone so the date stays the same wherever the user is you can first convert it into an ISO string, get rid of the 'Z' in the end, and then convert it back into the Date object.
const dateString = '2021-08-13'
const localeOptions = {dateStyle: 'long'}
const dateTimezone = new Date(dateString).toLocaleString('en-US', localeOptions)
const dateWithoutTimezone = new Date(new Date(dateString).toISOString().slice(0,-1)).toLocaleString('en-US', localeOptions)
console.log(dateTimezone)
console.log(dateWithoutTimezone)
Convert your string date to a JS Date Object
let strDate = "2021-08-13";
let date = new Date(strDate);
console.log(date.toDateString())
Learn more about Date object here: JavaScript Date

How to convert milliseconds to the date ( day of the month )? [duplicate]

This question already has answers here:
Convert a Unix timestamp to time in JavaScript
(34 answers)
Closed 3 years ago.
I need to get the date ( day of the month ) from UNIX epoch time .
I can get the date from this:
new Date ().getDate()
But I need to get from Date.now(), Date.now().getDate() gives me an error..
How to get that date ( day of the month ) ??
You can pass number of miliseconds to Date constructor like:
let now = Date.now();
let date = new Date(now).getDate();
console.log(date);

Format date from DD.MM.YY format to DD/MM/YYYY format [duplicate]

This question already has answers here:
How do I format a date in JavaScript?
(68 answers)
Why does Date.parse give incorrect results?
(11 answers)
Closed 3 years ago.
How can I format date from DD.MM.YY format to any other format (preferably DD/MM/YYYY) with full 4 digits year value that I can input to new Date() by using javascript?
I find similar issue but in PHP code, is there an library that can convert that in javascript?
I'm getting Invalid Date error when inputting that date format to new Date()
Vanilla JavaScript can be used to convert the date string into a Date object by calling split(",") on the string, parseInt() on each returned array item, and then adding 1900 or 2000 to the year component based on your own needs. Date() takes the year, month, and day as arguments.
Once you have a JavaScript date object, a method like this using padStart() can output the date into the DD/MM/YYYY format.
See this example codepen: https://codepen.io/volleio/pen/BXWKyp

How can i get first and last day of current week in ISO Date format in javascript? [duplicate]

This question already has answers here:
JavaScript - get the first day of the week from current date
(20 answers)
Closed 4 years ago.
$gte: ISODate("2010-04-29T00:00:00.000Z"),$lt: ISODate("2010-05-01T00:00:00.000Z")
You may get the day of the week by calling .getDay() on the date object. Once you have the day of the week, rest are arithmetic operations.
To convert Date to ISODateFormat you can use toISOString
var dateForCalculation = new Date();
var prevSunday = new Date(dateForCalculation.setDate(dateForCalculation.getDate()-dateForCalculation.getDay())).toISOString();
var nextSunday = new Date(dateForCalculation.setDate(dateForCalculation.getDate()+7)).toISOString();
console.log(prevSunday);
console.log(nextSunday);

Javascript dates in MM/dd/yyyy format [duplicate]

This question already has answers here:
How do I get the current date in JavaScript?
(61 answers)
Closed 8 years ago.
I wanted to know how can I get todays date in as July 17,2014 format. I am new to javascript..
please help
but
I have tried using var today = new Date();..but it gives me current date and not in the format I want.
Try to make use of following method of Date in javascript:
getFullYear(); // 2011
getMonth(); // 0-11, 0-based month in year,
getDate(); // 0-31, 1-based day of month,

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